{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T12:10:22Z","timestamp":1785413422341,"version":"3.56.0"},"reference-count":57,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2021,3,10]],"date-time":"2021-03-10T00:00:00Z","timestamp":1615334400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["physoc.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Physiology"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:sec><jats:title>Key points<\/jats:title><jats:p><jats:list list-type=\"bullet\">\n<jats:list-item><jats:p>Sensory systems are adapted to the statistical structure of natural stimuli, thereby optimizing neural coding.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>Head motion during natural activities is first sensed and then processed by central vestibulo\u2010motor pathways to influence subsequent behaviour, thereby establishing a feedback loop.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>To investigate the role of this vestibular feedback on the statistical structure of the head movements, we compared head movements in patients with unilateral vestibular loss and healthy controls.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>We show that the loss of vestibular feedback substantially alters the statistical structure of head motion for activities that require rapid online feedback control and predict this change by modelling the effects of increased movement variability.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>Our findings suggest that, following peripheral vestibular loss, changes in the reliability of the sensory input to central pathways impact the statistical structure of head motion during voluntary behaviours.<\/jats:p><\/jats:list-item>\n<\/jats:list><\/jats:p><\/jats:sec><jats:sec><jats:title>Abstract<\/jats:title><jats:p>It is widely believed that sensory systems are adapted to optimize neural coding of their natural stimuli. Recent evidence suggests that this is the case for the vestibular system, which senses head movement and contributes to essential functions ranging from the most automatic reflexes to voluntary motor control. During everyday behaviours, head motion is sensed by the vestibular system. In turn, this sensory feedback influences subsequent behaviour, raising the questions of whether and how real\u2010time feedback provided by the vestibular system alters the statistical structure of head movements. We predicted that a reduction in vestibular feedback would alter head movement statistics, particularly for tasks reliant on rapid vestibular feedback. To test this proposal, we recorded six\u2010dimensional head motion in patients with variable degrees of unilateral vestibular loss during standard balance and gait tasks, as well as dynamic self\u2010paced activities. While distributions of linear accelerations and rotational velocities were comparable for patients and age\u2010matched healthy controls, comparison of power spectra revealed significant differences during more dynamic and challenging activities. Specifically, consistent with our prediction, head movement power spectra were significantly altered in patients during two tasks that required rapid online vestibular feedback: active repetitive jumping and walking on foam. Using computational methods, we analysed concurrently measured torso motion and identified increases in head\u2013torso movement variability. Taken together, our results demonstrate that vestibular loss significantly alters head movement statistics and further suggest that increased variability and impaired feedback to internal models required for accurate motor control contribute to the observed changes.<\/jats:p><\/jats:sec>","DOI":"10.1113\/jp281183","type":"journal-article","created":{"date-parts":[[2021,2,18]],"date-time":"2021-02-18T14:38:16Z","timestamp":1613659096000},"page":"2239-2254","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Loss of peripheral vestibular input alters the statistics of head movement experienced during natural self\u2010motion"],"prefix":"10.1113","volume":"599","author":[{"given":"Omid A.","family":"Zobeiri","sequence":"first","affiliation":[{"name":"Department of Biomedical Engineering McGill University  Montreal Quebec 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